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Accrued Expenses and Other Current Liabilities
 6 Months Ended
Jun. 30, 2020
Payables and Accruals [Abstract]  
Accrued Expenses and Other Current Liabilities Accrued Expenses and Other Current Liabilities
Accrued expenses and other current liabilities consist of the following (dollars in thousands):
June 30,
2020		December 31,
2019
(unaudited)
Accrued clinical trial costs (1)
$10,735  $13,285  
Accrued compensation11,995  11,223  
Accrued professional fees10,090  3,936  
Accrued royalties12,957  —  
Other accrued expenses13,041  5,861  
Total$58,818  $34,305  
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(1) Includes preclinical and all clinical trial-related costs.